damn, i think i need to get a more agressive intake and cam ....
Blackvert,
Yeah if it was me I wouldn't run the intake in your pic. They are great intakes for 302's not so good for over 400 cubes.
The other thing I didn't mention in my first response that you brought up was the cam. People get cams that were made for 302's or 289's or 260's or 221's they all fit in a 351. So they think man I know a guy who has this cam and it was really radical, but it's not when you put in in a big cube motor. Were talking 33% bigger than a 302. If you have the heads that will flow for a big motor and put a small cam and intake made more for a street 302 you will give up 75-100hp on the top end. You will still have more bottom end than any 302 anyway!
Throw a supercharger on and it's insane to try to hook it up. But it is fun to light the tires up going down the freeway!!!